4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER
TDA7454
4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY: 4 x 40W/4Ω MAX. 4 x 35W/4...
Description
TDA7454
4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY: 4 x 40W/4Ω MAX. 4 x 35W/4Ω EIAJ. 4 x 25W/4Ω @14.4V, 1KHz, 10% 4 x 60W/2Ω MAX. 2Ω DRIVING CAPABILITY DUAL MODE OPERATING EXTERNALLY PRESETTABLE: CONVENTIONAL CLASS AB MODE, HIGH EFFICIENCY MODE
LOW EXTERNAL COMPONENTS COUNT: – NO BOOTSTRAP CAPACITORS – NO EXTERNAL COMPENSATION – INTERNALLY FIXED GAIN (26dB)
CLIPPING DETECTOR
ST-BY FUNCTION (CMOS COMPATIBLE)
MUTE FUNCTION (CMOS COMPATIBLE)
AUTOMUTE AT MINIMUM SUPPLY VOLTAGE DETECTION
LOW RADIATION
Protections: OUPUT SHORT CIRCUIT TO GND; TO VS; ACROSS THE LOAD
3 STEPS OVERRATING CHIP TEMPERATURE WITH THERMAL WARNING
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
BLOCK & APPLICATION DIAGRAM
September 2013
STD/HI- EFF
IN RIGHT FRONT
0.22µF
16 11
ST-BY
IN RIGHT REAR
0.22µF
4 12
MUTE IN LEFT FRONT
IN LEFT REAR
CD
0.22µF
22 15
100µF SVR
10
0.22µF
14
25
MULTIPOWER BCD TECHNOLOGY
Flexiwatt 25
LOUDSPEAKER DC CURRENT ESD
DESCRIPTION The TDA7454 is a new BCD technology QUAD BRIDGE type of car radio amplifier in Flexiwatt25 package specially intended for car radio applications. Among the features, its superior efficiency performance coming from the internal exclusive structure, makes it the most suitable device to simplify the thermal management in high power sets. The dissipated output power under average listening condition is in fact reduced up to 50% when compared to the level provided by conventional class AB solutions.
6 VCC1 20
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